@article{IM_1980__58_142721,
     author = {T.A. Springer},
     title = {The {Steinberg} {Function} of a {Finite} {Lie} {Algebra.}},
     journal = {Inventiones mathematicae},
     pages = {211--216},
     publisher = {mathdoc},
     volume = {58},
     year = {1980},
     zbl = {0435.20025},
     url = {http://geodesic.mathdoc.fr/item/IM_1980__58_142721/}
}